Pipe-coupling



L. SpPARKER.

PIPE COUPLING.

APPLICATION FILED IAN-22,19I3.

awww/Lto@ Patented Aug. 1, 1916.

3 SHEETS-SHEETI Zal@ O/HQ L. S. PARKER.

PIPE COUPLING.

APPLICATION FILED IAN.22, 1913.

Patented Aug. l, 1916.

3 SHEETS--SHEET 2.

@@@QQCQQ C@ 51A/mentor,

L. S. PARKER.

PIPE COUPLNG.

APPucArloN FILED 1AN.22.1913.

1,1 93,42. Patented Aug. 1, 1916.

'je 3 SHEETS-SHEET 3.

LEvIN s. Panama, oF NEW YORK, N. Y., assIGNoN To PARKER UNIVERSAL ooUPLrNG COMPANY, INCORPORATED, or NEW YORK, N. Y., n CORPORATION or New Yoan.

PIPE-COUPLIN'G.

incense.

Specification of Letters Patent.

Application led lJanuary 22, 1913. Serial No. 7e3,522.

To all whom t may concern;-

Be it known that I, vLEVIN PARKER, a citizen of the United States, residlng in the borough of Brooklyn, city of New York,

county of Kings, and State of New York, have invented certain new and useful Improvements in Pipe-Couplings, of which the following is a specification.

My invention relates to pipe couplings, and particularly to a coupling for pipes of `large diameter such as, pontoon pipes employed in connection with dredging apparatus.

The strengthen, to increase the life of, and make `more reliable, and facilitate the coupling carrying with it the `dredged material froml the dredge to the spoil bank. The distance from the dredge to the spoil bank, is a varying one, and requires'a pipe lineconnected together insuch a way that the number of pipes in the line can be quickly and easlly increased or decreased at will, thus lengthening or shortening the line. At the same time the line must have flexibility, which is provided for in the couplings between the pipe sections. The efficiency in a pipe line depends largely uponl manipulation'of the same, that is to say, thev efficiency of the pipe line depends on the manner in which the various units are connected together, and the time it takes to connect up a' line,

and how secure these connections are when made. This requirement which is of prime importance for the construction of a good pipe line was heretofore taken into account object of my invention is to' dredges vary from l2inches to 36 inches in diameter. The pipes are usually about 30 to Li0 feet in length, supported by pontoons and the pontoon pipes are connected t0- gether with rubber` connections, which connections are made up of from 8 lto 1-5 plies of canvas, and vary in thickness from to l, and are from two to three feet in length. rl`his connection is placed outside of two pipes and clamped on the ends of the pipes with what are known as connection bolts. The pipeitself having half Oval bands at'the ends of the pipe riveted on to prevent the connection bands pulling off and the pipes separating, are not very flexirateatea'nag. i, icio.

ble, and take considerable time to put on and take olf, especially when there is any rough weather. These connections also cause an undue amount of friction in the pipe.

I will describe a pipe coupling embodying my invention, together with modifications of the same, and then point out the novel fea.- tures thereof in claim.

In the accompanying drawings, Figure 1 is a side elevation of a pipe section equipped at its ends with parts of a coupling embodying my invention; Fig. Y2 is an end elevation "of the left hand end of the pipev ofFig. l;

Fig. 3 is a vertical sectional view of the preferred form of coupling embodying'my invention, and drawn to a larger scale than Figs. l and 2; Fig. 4 is a viewsimilar to Fig. 3 but illustrating a modification of my invention; Fig. 5 is a View in elevation 4of the form ofk coupling shown in Fig.r 4, but also-showing features employed in'l the coupli'ng shown in Figs. 3, 6 and 7; Fig..6 is a view similar to Figs. 3 and 4,' but showing a modification of my invention; and Fig. 7

is a detail view of a modification.

Similar reference characters designate corresponding parts in all of the figures;

A, designates a section or length of pipe which may be of sheet metal or without seam which is provided at one end with a flaring portion B, here shown as being in a separate piece and joined to the pipe section A by means of rivets b. The flaring portion B, however, may be integral with the pipe section A.' In the drawings I have shown the member B as being made of plate and riveted together, but it may be a single casting. The other end of the pipe section A is provided with an annular member C having a curved or arc shaped outer surface,

The annular member C is here shown as a separate piece and joined to the pipe section A by means of rivets c. The member may assume any desired form in cross section, provided, owever, that it has a curved or arc shaped outer surface. In Figs. 3, 4, and 6 I have shown two forms which the annular member C may assume.

In making -a coupling the member C of `one pipe sectionI enters the flared end B of an adjacent pipe section, the inner 'surface of which kaffords a bearingsurface for the curved outer surface of the member C. This is best shown in Figs. 3, 4 and 6. The two members are held together by means of a wedge ring D, which is retained 1n posltion between the members B and C. This arrangement of the members B and C and the wedge ring D provides for the deslred Aflexibility, in the coupling as indicated in dotted lines, Fig. 3. The inner diameter of the wedge ring D is such as to prevent 1t being moved over the member C, and the wedge ring is slipped onto the pipe section 4before the member C .is riveted' to the pipe section.

The wedge rin D is retained in position between the mem ers B and C by means of bolts E, which are carried in openings provided in lugs f of a ring F. lEach of said bolts is providedwith a device, here shown as being a hook for engaging and disengaging the wedge-shaped ring. Any number of f bolts E may be employed. In .practice I have found three to be suiiicient. Nuts e are provided for the hook bolts E: The ring F is joined to the fiared member B by rivets f',

- see Fig. .5. The ring F, however, may be integralwith the flared member B as shown in Fig. 7. j

In the form of my invention which is best shown in Fig. 3, I provide a gasket G, preferably of rubber,between'the adjacent surfaces of the two members B and C. The

frustum-s jor arc-shaped surface, when the two memany ,flexing of the coupling.

inem/ies shown in Fig. 6, is also provided with a shoulder and with a ring d ofbrass or oth'er material lwhich acts to retain the gasket G in position as well as to afford a bearing for the member C when the joint is flexed. The coupling, when thetpipe line is in service, is kept tight by the pressure in the pipe line, which pressure tends to force the members B and C apart. This tendency to separate is resisted by the hook bolts, and necessarily the gasket, when employed, is compressed to make the coupling all the tighter.

In order to uncouple two pipe sections it is only necessary to give the bolts E a quarter turn, therebyreleasing the wedge ring D and allowing the two pipes to separate. To couple two pipes it is only required to bring the pipe sections together, place the wedge ring D in position with the gasket G on it and turn the bolts until the hooks thereof engage the wedge ring D. As soon as thev pressure comes on in the pipe line, the coupling tightens u yVlfhat I claim and des1re to secure by Letters Patent of the United States is A pipe coupling comprising one member 'having an annular frustum-shaped member, a second lannular member having a curved or arc-shalped outer surface which enters the apedmember and which curved bers are assembled, has a bearing on the straight inner surface of the frustum-shaped member, a ring fitting between the two said members and having two surfaces which conform with the adjacent surfaces of the said two members, a gasket engaged by the rin to hold it between the adjacent faces f gie two members, klugs carried by the first mentioned member, and each provided with an opening, a bolt extending through the opening in each lug and provided with a hook which` engages with the said ring, and a nut for each bolt for holding the hook thereof against the ring whereby, upon loosening the nut and by a partial turn `of the bolts, the hooks are madeto engage and' disengage the ring),

-i In testimony whereof I have hereunto signed my name in the presence of two sul GEO. E. CRSE, M. E. MCNINCH.

.scribing witnesses.

wedge ring and 

